Yes
21 is an odd composite number
It is odd.
An even number can be divided by 2 evenly. An odd number will have a remainder of 1 when divided by 2. 21 is an odd number.
an odd number
There can be no number with an odd sum of 8 because 8 is not odd!
Since 21 fails the divide by two test it would seem to be odd.
21+9=20
The sum of any four odd numbers will never be equal to an odd number.
In mathematics, an even number is an integer that is divisible by 2 without leaving a remainder. In the case of 21, when divided by 2, there is a remainder of 1, indicating that it is not evenly divisible by 2. Therefore, 21 is classified as an odd number.
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21
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